Home / 1,216,942.80-1,825,414.20-1,209,944.40

Finding the Fourth Proportional to 1,216,942.80, 1,825,414.20 and 1,209,944.40

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Solution

The fourth proportional to 1,216,942.80, 1,825,414.20 and 1,209,944.40 is: 1,814,916.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,216,942.80 : 1,825,414.20 = 1,209,944.40 : x
  2. Step 2: Convert to fraction form
    1,216,942.80/1,825,414.20 = 1,209,944.40/x
  3. Step 3: Cross multiply
    1,216,942.80x = 1,825,414.20 × 1,209,944.40
  4. Step 4: Simplify right side
    1,216,942.80x = 2,208,649,688,970.48
  5. Step 5: Solve for x
    x = 2,208,649,688,970.48/1,216,942.80
  6. Step 6: Final answer
    x = 1,814,916.60

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.